When and how did the universe begin? Why are we here? What is the nature of reality? Is the apparent “grand design” of our universe evidence of a benevolent creator who set things in motion—or does science offer another explanation? In The Grand Design, Stephen Hawking and Leonard Mlodinow present the most illuminating scientific thinking about these and other abiding mysteries of the universe, in nontechnical language marked by brilliance and simplicity.

For nearly a century, Victorian London relied on “climbing boys” - orphans owned by chimney sweeps - to clean flues and protect homes from fire. The work was hard, thankless, and brutally dangerous. Eleven-year-old Nan Sparrow is quite possibly the best climber who ever lived - and a girl. But when Nan gets stuck in a deadly chimney fire, she fears her time has come. Instead, she wakes to find herself in an abandoned attic. And she is not alone. Huddled in the corner is a mysterious creature - a golem - made from ash and coal. This is the creature that saved her from the fire.

Everyone who wishes upon a star, or a candle, or a penny thrown into a fountain knows that you're not allowed to tell anyone what you've wished for. But even so, there is someone out there who hears it. In a magical land called the Haven lives a young fairy named Ophelia Delphinium Fidgets. Ophelia is no ordinary fairy - she is a Granter: one of the select fairies whose job it is to venture out into the world and grant the wishes of unsuspecting humans every day.

Eleven-year-old Perry was born and raised by his mom at the Blue River Co-ed Correctional Facility in tiny Surprise, Nebraska. His mom is a resident on Cell Block C, and so far Warden Daugherty has made it possible for them to be together. That is, until a new district attorney discovers the truth - and Perry is removed from the facility and forced into a foster home.

Imagine being looked up and down and being valued as less than chair. Less than an ox. Less than a dress. Maybe about the same as a lantern. You, an object. An object to sell. In his gentle yet deeply powerful way, Ashley Bryan goes to the heart of how a slave is given a monetary value by the slave owner, tempering this with the one thing that can't be bought or sold - dreams.

In an evocative and fast-paced adventure on the high seas and on a faraway island an orphan boy named Peter and his mysterious new friend, Molly, overcome bands of pirates and thieves in their quest to keep a fantastical secret safe and save the world from evil.

When his father takes a new job in Massachusetts, Ben Moroney must leave behind his best friend Tony, a western banded gecko named Lenny, and worst of all, the Arizona desert home he has loved and explored. Ben’s adjustment to his new environment is not going well until he unexpectedly finds a kindred spirit in his eccentric fifth-grade science teacher, Mrs. Tibbets. She introduces him to the rare and elusive Eastern spadefoot toads that make their home on her rural property. When Ben discovers that Mrs. Tibbets’s land may be sold to developers, he knows he has to do something.

Follow the adventures of Zoey and her cat, Sassafras, with this collection of books one to six in the series. Each story features a new magical animal with a problem that must be solved using science. There isn’t a set formula for each book; Zoey sometimes needs to run experiments, while other times she needs to investigate a mystery, and yet other times she needs to do research. Zoey models how to keep a science journal through her handwritten entries in each story.

From world-renowned historian and philosopher Yuval Noah Harari, the New York Times bestselling author of Sapiens, comes an exciting, brand-new audiobook for middle-grade listeners that looks at the early history of humankind.

While her classmates are jetting off to family vacations in exotic locales, Aru will be spending her autumn break at home, in the Museum of Ancient Indian Art and Culture, waiting for her mom to return from her latest archeological trip. Is it any wonder that she makes up stories about being royalty, traveling to Paris, and having a chauffeur? One day, three schoolmates show up at her doorstep to catch her in a lie. They don't believe her claim that the museum's Lamp of Bharata is cursed, and they dare Aru to prove it. Just a quick light, Aru thinks. She can get herself out of this.

A dazzling feminist reinterpretation of a classic fairy tale, from the best-selling author of The Miniaturist and The Muse. For her 12 daughters, Queen Laurelia's death in a motor car accident is a disaster beyond losing a mother. Their father, King Alberto, cannot bear the idea of the princesses ever being in danger and decides his daughters must be kept safe at all costs. Those costs include their lessons, their possessions and, most importantly, their freedom. But the eldest, Princess Frida, will not bend to his will without a fight.

Ponyboy can count on his brothers. And on his friends. But not on much else besides trouble with the Socs, a vicious gang of rich kids whose idea of a good time is beating up "greasers" like Ponyboy. At least he knows what to expect, until the night someone takes things too far.

Rebekah Daniels is just your ordinary spunky nine-year-old girl living in the small town of Curtis Bay…EXCEPT she is determined NOT to be ordinary at all! Her small town is filled with mysteries and Rebekah is sure that she, along with her best friend Mouse, will be able to solve every last one of them.

Before they were the Boxcar Children, Henry, Jessie, Violet, and Benny Alden lived with their parents on Fair Meadow Farm. Although times are hard, the Aldens are happy - “the best family of all,” Mama likes to say. One day, a blizzard hits the countryside, and a traveling family needs shelter. The Aldens take them in, and the strangers soon become friends. But things never stay the same at the farm, and the spring and summer bring events that will forever change their lives.

Stanley Yelnats is under a curse. A curse that began with his no-good-dirty-rotten-pig-stealing-great-great-grandfather and has since followed generations of Yelnatses. Now Stanley has been unjustly sent to a boys' detention center, Camp Green Lake, where the boys build character by spending all day, every day digging holes exactly five feet wide and five feet deep. There is no lake at Camp Green Lake. But there are an awful lot of holes.

Pi in the Sky stars Joss, the seventh son of the Supreme Overlord of the Universe, whose job is to deliver magical pies - ones that happen to hold the secrets of the cosmos. But when planet Earth suddenly disappears, Joss must figure out a way to bring it back - even if it means enlisting the help of an outspoken Earth girl named Annika.

Unlike the thousands converging at Moon Shadow to witness a total solar eclipse, Ally calls the isolated campground home. Bree shields herself in a cloak of good looks and popularity, but there is something within her no one suspects. And Jack, overweight and socially inept, finds himself on the verge of a startling possibility.

Once upon a time - long, long ago, when dinosaurs roamed the Earth - an egg rolled away from its mother and landed in the ocean, where it froze solid and stayed peacefully for thousands of years. Then one day, Santa and his elves discover the frozen egg, and Santa sits on it to see if it will hatch. But he can't guess what's inside: a dinosaur! Meanwhile, a young boy named William Trundle has only ever wished for one thing for Christmas: a dinosaur! So when Santa accidentally gives William the real Christmasaurus instead of a stuffed replica, it's the best Christmas ever!

Twelve-year-old Daniel, the new kid in town, soon learns the truth about his nice - but odd - new friends: one can fly, another can turn invisible, yet another controls electricity. Incredible. The superkids use their powers to secretly do good in the town, but they’re haunted by the fact that the moment they turn thirteen, their abilities will disappear - along with any memory that they ever had them. Is a memory-stealing supervillain sapping their powers?

Ollie and Celia think they know what the life of an elf is supposed to be like: Make toys. Help Santa. Make more toys. Help Santa. Try out a new ice-cream flavor. Help Santa. But then Santa rocks the North Pole with a surprise announcement! He's decided this is going to be his last year in the Big Red Suit, and, instead of letting his oldest son - the unfortunately named Klaus Claus - take over, he's opening up the job to any Claus or elf who wants to apply.

The year is 1939. A secret society of extraordinary geniuses is about to share an incredible discovery with the world. A misguided enemy - half man, half machine - will stop at nothing to prevent the group from giving this forbidden knowledge to humanity. And a mother and son on vacation in New York City are handed a comic book infused with a secret code that will lead them straight into the crossfires of the conspiracy.

Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place that might sound and smell very much like our own, but which looks completely different. Particularly as it’s carried though space on the back of a giant turtle (sex unknown). It plays by different rules. But then, some things are the same everywhere. The Disc’s very existence is about to be threatened by a strange new blight: the world’s first tourist, upon whose survival rests the peace and prosperity of the land.

The Impossible Postal Express is no ordinary train. It's a troll-operated delivery service that runs everywhere from ocean-bottom shipwrecks to Trollville and to space. But when this impossible train comes roaring through Suzy's living room, her world turns upside down. After sneaking on board, Suzy suddenly finds herself deputy post master aboard the train and faced with her first delivery - to the evil Lady Crepuscula. Then, the package itself begs Suzy not to deliver him.

Joey Harker isn't a hero. In fact, he's the kind of guy who gets lost in his own house. But then one day, Joey gets really lost. He walks straight out of his world and into another dimension. Joey's walk between the worlds makes him prey to two terrible forces: armies of magic and science who will do anything to harness his power to travel between dimensions.

With the defeat of the Overtakers behind them, the five teenagers known as the Kingdom Keepers should be celebrating. By all accounts they saved Disneyland from certain destruction. Why then did their mentor leave one last puzzle for them to decipher? The Keepers must solve a puzzle of the past, or be crushed under an evil that makes the Overtakers seem like gentle souls.

In Jasper Fforde's Great Britain, circa 1985, time travel is routine, cloning is a reality (dodos are the resurrected pet of choice), and literature is taken very, very seriously. England is a virtual police state where an aunt can get lost (literally) in a Wordsworth poem and forging Byronic verse is a punishable offense. All this is business as usual for Thursday Next, renowned Special Operative in literary detection.

Welcome to the Sweet Tooth Ice Cream & Candy Shoppe, where the confections are a bit on the... unusual side. Rock candy that makes you weightless. Jawbreakers that make you unbreakable. Chocolate balls that make you a master of disguise. Four young friends - Nate, Summer, Trevor, and Pigeon - meet the grandmotherly Mrs. White, owner of the Sweet Tooth, and soon learn about the magical side effects of her candies.

Nicola Berry's life is turned upside down the day a man from another planet comes to Earth on a strange mission. He's looking for somebody to travel back to his home planet and convince their stuck-up princess not to turn Earth into her planet's giant garbage dump. When Nicola is chosen as the Earthling Ambassador, she's not sure that she's up to the task. Can Nicola and her friends save the planet in time? Or will the nasty Princess Petronella cover Earth in a galactic ton of garbage?

Author Kathleen Van Cleve delivers a promising debut with this magical novel. Eleven-year-old Polly Peabody lives on a farm like no other. It rains every Monday at 1:00 p.m., the crops taste like chocolate, the bugs can communicate, and Polly’s best friend is a rhubarb plant named Harry. But when the weekly downpours stop, and Polly’s brother grows ill, she must figure out how to make it rain again—or her family’s future could be destroyed.

Matt Cruse is a cabin boy on the Aurora, a huge airship that sails hundreds of feet above the ocean. One night he meets a dying balloonist who speaks of beautiful creatures drifting through the skies. It is only after Matt meets the balloonist's granddaughter that he realizes that the man's ravings may, in fact, have been true, and that the creatures are completely real and utterly mysterious.

Billie Jo has a great deal to forgive: Her father for causing the accident that killed her mother; her mother for leaving when Billie Jo needed her most; and herself for being the cause of her own sorrow. Daddy's too wrung out to help her, and there's no one else to care. So at 14, Billie Jo must heal herself - even if it means tearing up her roots and leaving behind everything she's ever known.

Everyone who wishes upon a star, or a candle, or a penny thrown into a fountain knows that you're not allowed to tell anyone what you've wished for. But even so, there is someone out there who hears it. In a magical land called the Haven lives a young fairy named Ophelia Delphinium Fidgets. Ophelia is no ordinary fairy - she is a Granter: one of the select fairies whose job it is to venture out into the world and grant the wishes of unsuspecting humans every day.

If a black hole is not a hole, then what is it? Find out what black holes are, what causes them, and how scientists first discovered them. Learn how astronomers find black holes, get to know our nearest black-hole neighbor, and take a journey that will literally s-t-r-e-t-c-h the mind.

Winner of a Pura Belpré Award, this middle grade Cuban American coming-of-age novel is inspired by the author's own experience. When Julian's parents make the heartbreaking decision to send him and his two brothers away from Cuba to Miami via the Pedro Pan operation, the boys are thrust into a new world where bullies run rampant and it’s not always clear how best to protect themselves.

Eleven-year-old Perry was born and raised by his mom at the Blue River Co-ed Correctional Facility in tiny Surprise, Nebraska. His mom is a resident on Cell Block C, and so far Warden Daugherty has made it possible for them to be together. That is, until a new district attorney discovers the truth - and Perry is removed from the facility and forced into a foster home.

Stephen Hawking not only unraveled some of the universe's greatest mysteries but also believed science plays a critical role in fixing problems here on Earth. Now, as we face immense challenges on our planet - including climate change, the threat of nuclear war, and the development of artificial intelligence - he turns his attention to the most urgent issues facing us. Will humanity survive? Should we colonize space? Does God exist? These are just a few of the questions Hawking addresses in this wide-ranging, passionately argued final book from one of the greatest minds in history.

This edition of Margot Lee Shetterly’s acclaimed book is perfect for young students. It's the powerful story of four African-American female mathematicians at NASA who helped achieve some of the greatest moments in our space program. Before John Glenn orbited the earth, or Neil Armstrong walked on the moon, a group of dedicated female mathematicians known as “human computers” used pencils, slide rules, and adding machines to calculate the numbers that would launch rockets, and astronauts, into space.

Swift, a young wolf cub, lives with his pack in the mountains learning to hunt, competing with his brothers and sisters for hierarchy, and watching over a new litter of cubs. Then a rival pack attacks, and Swift and his family scatter. Alone and scared, Swift must flee and find a new home. His journey takes him a remarkable 1,000 miles across the Pacific Northwest. The trip is full of peril, and Swift encounters forest fires, hunters, highways, and hunger before he finds his new home.

In 1942, when Mahatma Gandhi asks Indians to give one family member to the freedom movement, 10-year-old Anjali is devastated to think of her father risking his life for the freedom struggle. But it turns out he isn't the one joining. Anjali's mother is. And with this change comes many more adjustments designed to improve their country and use "ahimsa" - non-violent resistance - to stand up to the British government. First the family must trade in their fine foreign-made clothes for homespun cotton, so Anjali has to give up her prettiest belongings.

An abandoned house at the end of the block. A mysterious girl in an upstairs window. A strange black SUV lurking around every corner. When Nick and Tesla Holt are sent to live with their eccentric Uncle Newt, they find their new neighborhood is full of secrets. What the heck is going on? To unravel the mysteries (and save their skins), Nick and Tesla must use everyday household objects to build electromagnets, rocket launchers, and other crazy contraptions.